Pile-puller.



R. J. BLACKBURN.

PILF. FULLER.

APPLICATION TILED MAY 31,1911.

Patented Sept. 29, 1914.

2 SHEETS SHEE'I. 1.

, To all whom it may concern:

' 66 designate angle plates which are se- Be it known that I, ROY J. BLACKBURN, cured to the plate 4 on either side of the a citizen of the United States, and resident aperture 5. of St. Louis, Missouri, have invented cere 77 designate plates which are secured tain new and useful Improvements in Pileto the angle plates 6 with portions thereof Pullers, of which the following is a speciprojecting downwardly through the aperfication containing a full, clear, and exact ture 5 and projecting above the angle plates description, reference being had to the ac- 6. Arranged adjacent the upper margin companying drawings, forming a part of each. of the plates 7 there are journal hereof. bearings supporting a shaft 8 upon which is My invention relates to improvements in carried the pulley 9. At the lower end of pile pullers, and the object of my ii1ventheplates 7, beneath the plate 4, there is a tion is to construct a simple, durable and bolt 10 upon which there is secured a link inexpensive machine for pulling piles, 11 arranged for the support of the yoke 12 which machine is constructed of a minimum in which is carried a block 13.

weight whereby it may be readily translat designates a link which is arranged ported from place to place as required in its for connection with a pile 15, the link 14 operation. And a further object of my in-' being connected with the yoke 16 in which v vention is to construct a metallic head for yoke is carried the block 17, the two blocks the tripod of the machine, which head is 13 and 17 being connected with a tackle of a minimum number of parts. rope 18, the end 19 of which rope leads to a With the above purposes in view my insuitable hoisting mechanism not shown. vention consists in certain novel features The pulley 9 is embraced by a rope'20 of construction and arrangement of parts which leads to the hoisting mechanism reas will be hereinafter more fully set forth, ferred to and is used principally for the pointed out in the claims and illustrated by convenient handling of the tripod, the rope the accompanying drawings, in which 18 and-the tackle blocks. referred to being Figure 1 is a perspective of the complete employed for the pulling of the piles.

pile puller; Fig. 2 is a plan of the tripod The vertical portions of the channel bars head showinga pulley supported therein; 1 and 2 are perforated adjacent their ends Fig. q3is a transverse, sectional elevation and the vertical portions of the V-shaped taken on the line 83 of Fig. 2; Fig. 4 is member 3 are each perforated. In the pera perspective of the V-shaped frame memforations are supported the bolts 21 upon 5 her for the support of the head; Fig. 5 is a which are pivotally supported the legs 22. perspective of one oftheside frame mem- In the operation of the machine, assumbers of the head; andFig. 6 is a perspective ing the ropes 19 and 20 to be connected with of the top, plate of the head. the arm of the hoisting mechanism, the

Referring by numerals to the accompany tripod is swung to position on the rope 20 9'0 ing drawings: 1 and 2 designate the chanand the legs 22 placed in position over the nel bar frame members for the sides of the pile to be pulled. The link 14 is then contripod head, These channel bars are bent nected with the pile and the end 19 of the to form a substantially Y-shaped frame. rope is drawn by the hoisting mechanism 3 designates a V-shaped frame member and the pile is started or loosened from which is disposed at the open or top end of the earth through the medium of the tripod the Y-shaped frame consisting of the chanand the tackle. After the pile has been nel bars 1 and 2. sufficiently loosened by the tackle the com- 4 designates a plate which connects the pletion of the drawing of the pile is accomframe members 1, 2 and 3 and is secured to plished by the elevating of the entire Inathe channel bar frame members preferably chine through th emedium of the rope 20. by riveting to the upper flanges of the mem- I claim: I here. The plate 4, at itsapproximate cen In a pile puller, a tripod, a tackle supter, is provided with an'aperture 5. ported by and overhead the tripod and ar- UNITED, STATES PATENT OFFICE.

nor J. BLAc BURmor ST. LOUIS, MISSOURI, ASSIGNQR,OF onnenALr TO enonen G.-

. rnnnnnnensr, on sat. LOUIS, MISSOURI.

'I'ILE-PULLER.

v Specification. of Letters Patent. Patented Sept. 29, 1914.

. Application filed. May 31, 1911. Serial No. 630,480.

ranged to be connected with a hoisting ma- In testimony whereof, I have signed my chine, and a tackle suspended from the trinameto this specification, in 'presence of pod. and -.arra ;1ge;d4to be connected with-a @two siibscribing-witnesses.

pile and said hoisting machine, whereby a ROY "J. BLACKBURN.

5 pile may be first acted upon by said sus- 'Vvitnessesz' I I r pendediackle and then acted upon'by' said E. L. WALLACE, 3 7 J overhead tackle. N. G."BU'11 ER.-

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents.

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